HRP20171951T1 - Plošno spojeno netkano predivo od jedinstvenog polimernog sustava - Google Patents

Plošno spojeno netkano predivo od jedinstvenog polimernog sustava Download PDF

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HRP20171951T1
HRP20171951T1 HRP20171951TT HRP20171951T HRP20171951T1 HR P20171951 T1 HRP20171951 T1 HR P20171951T1 HR P20171951T T HRP20171951T T HR P20171951TT HR P20171951 T HRP20171951 T HR P20171951T HR P20171951 T1 HRP20171951 T1 HR P20171951T1
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Croatia
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threads
polymer
yarn
component
binding
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HRP20171951TT
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Gregory W. Farell
Edward Keith Willis
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Fiberweb, Llc
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Publication of HRP20171951T1 publication Critical patent/HRP20171951T1/hr

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D04H1/565—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres by melt-blowing
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Claims (23)

1. Postupak izrade netkanog prediva iz jedinstvenog polimernog sustava, naznačen time, da obuhvaća sljedeće korake: ekstrudiranje taljenjem amorfnog polimera koji se može kristalizirati, iz prvog ekstrudera i drugog ekstrudera kroz jednu ili više predilica koje stvaraju prvu skupinu neprekidnih niti i drugu skupinu neprekidnih niti za proizvodnju većeg broja vlakana; podvrgavanje polimera uvjetima proizvodnog procesa, koji proizvode prvi polimerni sastojak koji je barem djelomično kristalan i drugi polimerni sastojak koji je uglavnom amorfan; polaganje vlakana na sakupljačku površinu u svrhu stvaranja trake koja obuhvaća oba navedena polimerna sastojka, naime i prvi polimerni sastojak i drugi polimerni sastojak; međusobno spajanje vlakana u svrhu stvaranja spojene netkane trake u kojoj se drugi polimerni sastojak omekšava i staljuje za stvaranje spojeva s prvim polimernim sastojkom; i poduzimanje kristalizacije drugog polimernog sastojka tako, da oba navedena polimerna sastojka u rezultirajućem netkanom predivu, budu barem djelomično kristalna; pri čemu navedeni korak podvrgavanja polimera uvjetima proizvodnog procesa, koji proizvode prvi i drugi polimerni sastojak, obuhvaća sljedeće: podvrgavanje prve skupine neprekidnih niti naprezanju koje uključuje kristalizaciju, i podvrgavanje druge skupine neprekidnih niti naprezanju koje je dovoljno za induciranje kristalizacije, pri čemu korak podvrgavanja prve i druge skupine niti naprezanju za induciranje ili neinduciranje kristalizacije, obuhvaća ekstrudiranje niti s različitim brzinama ekstrudiranja; ili omogućavanje redukcije unutarnjeg viskoziteta polimera u drugom ekstruderu u odnosu na unutarnji viskozitet polimera u prvom ekstruderu.
2. Postupak prema zahtjevu 1, naznačen time, da je unutarnji viskozitet polimera u drugom ekstruderu smanjen pomoću dodavanja spoja za smanjivanje viskoziteta polimeru u drugom ekstruderu.
3. Postupak prema zahtjevu 1, naznačen time, da je unutarnji viskozitet polimera u drugom ekstruderu smanjen pomoću dodavanja recikliranog polimera u drugi ekstruder.
4. Postupak prema zahtjevu 1, naznačen time, da je polimer koji se može kristalizirati, odabran iz skupine koju čine: polietilen-tereftalat, politrimetilen-tereftalat, polibutilen-tereftalat, i polilaktička kiselina, i kopolimeri, te njihove kombinacije.
5. Postupak prema zahtjevu 1, naznačen time, da drugi polimerni sastojak prije spajanja, ima temperaturu omekšavanja koja je barem 5°C manja nego temperatura omekšavanja prvog polimernog sastojka.
6. Postupak prema zahtjevu 1, naznačen time, da korak spajanja vlakana, obuhvaća zagrijavanje vlakana na temperaturu na kojoj se drugi polimerni sastojak omekšava i postaje ljepljiv, dok prvi polimerni sastojak ostaje krut, zatim održavanje vlakana u obliku trake dok omekšani drugi polimerni sastojak prianja na odsječke ostalih vlakana na točkama križanja vlakana, te hlađenje vlakana u svrhu ukrućivanja drugog polimernog sastojka i stvaranja spojene netkane trake.
7. Postupak prema zahtjevu 1, naznačen time, da netkano predivo obuhvaća 65-95% prvog polimernog sastojka i 5-35% drugog polimernog sastojka.
8. Postupak prema zahtjevu 1, naznačen time, da obuhvaća sljedeće korake: polaganje prve skupine neprekidnih niti i druge skupine neprekidnih niti na sakupljačku površinu, u svrhu stvaranja trake koja sadrži i navedene prve djelomično kristalne niti kao matrične niti i navedene druge amorfne niti kao vezne niti; zagrijavanje trake tako, da se amorfne vezne niti omekšavaju i staljuju u svrhu stvaranja međusobnih spojeva i spojeva s matričnim nitima, dok se održava njihov oblik niti neograničene duljine; i poduzimanje kristalizacije amorfne vezne niti za vrijeme koraka zagrijavanja tako, da u rezultirajućem netkanom predivu i navedene matrične niti i navedene vezne niti, budu barem djelomično kristalne.
9. Postupak prema zahtjevu 8, naznačen time, da amorfni polimer koji se može kristalizirati, obuhvaća polietilen-tereftalat.
10. Postupak prema zahtjevu 8, naznačen time, da korak podvrgavanja prve i druge skupine niti uvjetima proizvodnog procesa, koji izvode naprezanje, obuhvaća stvaranje različitih unutarnjih viskoziteta u polimerima prve i druge skupine niti.
11. Postupak prema zahtjevu 8, naznačen time, da korak podvrgavanja prve i druge skupine niti uvjetima proizvodnog procesa, koji izvode naprezanje, obuhvaća ekstrudiranje niti pri različitim ekstruzijskim brzinama.
12. Plošno spojeno vretenom upredeno netkano predivo, naznačeno time, da obuhvaća neprekidne niti od polietilen-tereftalat-homopolimera uključujući matrične niti ekstrudirane taljenjem od polietilen-tereftalat-homopolimera relativno većeg unutarnjeg viskoziteta te vezne niti ekstrudirane taljenjem od polietilen-tereftalat-homopolimera relativno manjeg unutarnjeg viskoziteta, kao i mnoštvo termički staljenih spojeva koji se nalaze posvuda u predivu, gdje se staljeni spojevi sastoje od područja u kojima su se vezne niti omekšale i termički stalile sa susjednim nitima na kontaktnim točkama, te time, da su vezne i matrične niti zadržale svoj oblik niti neograničene duljine kroz cijelo predivo, te se pritom obje vrste niti, i matrične i vezne, nalaze u stanju polukristala, te one izražavaju jedinstvenu vršnu vrijednost taljenja, kako se prikazuje pomoću DSC-traga.
13. Netkano predivo prema zahtjevu 12, naznačeno time, da matrične niti i vezne niti izražavaju različite nanose boja.
14. Netkano predivo prema zahtjevu 12, naznačeno time, da netkano predivo obuhvaća 65-95% matričnih niti i 5-35% veznih niti.
15. Plošno spojeno vretenom upredeno netkano predivo, naznačeno time, da obuhvaća neprekidne dvokomponentne niti neograničene duljine od polietilen-tereftalat-homopolimera uključujući matrični sastojak ekstrudiran taljenjem od polietilen-tereftalat-homopolimera relativno većeg unutarnjeg viskoziteta te vezni sastojak ekstrudiran taljenjem od polietilen-tereftalat-homopolimera relativno manjeg unutarnjeg viskoziteta, kao i mnoštvo termički staljenih spojeva koji se nalaze posvuda u predivu, gdje se staljeni spojevi sastoje od područja u kojima se je vezni sastojak omekšao i termički stalio sa susjednim nitima na kontaktnim točkama, te time, da se oba sastojka, i vezni i matrični, nalaze u stanju polukristala, te oni izražavaju jedinstvenu vršnu vrijednost taljenja, kako se prikazuje pomoću DSC-traga.
16. Netkano predivo prema zahtjevu 15, naznačeno time, da dvokomponentne niti imaju konfiguraciju poprečnog presjeka kao plašt i jezgra, gdje matrični sastojak oblaže jezgru a vezni sastojak oblaže okolni plašt.
17. Netkano predivo prema zahtjevu 12, naznačeno time, da niti netkanog prediva obuhvaćaju međusobno spojene neprekidne niti neograničene duljine među kojima su neke niti staljene na susjedne niti na kontaktnim točkama i pritom neke od niti nisu staljene na susjedne niti na kontaktnim točkama.
18. Netkano predivo prema zahtjevu 12, naznačeno time, da niti imaju višestruko čunjasti oblik poprečnog presjeka.
19. Netkano predivo prema zahtjevu 18, naznačeno time, da se staljeni spojevi nalaze samo na čunjevima od višestruko čunjastih niti.
20. Netkano predivo prema bilo kojem od zahtjeva 12-14 i 17-19, naznačeno time, da je matrični sastojak oblikovan s polietilen-tereftalat-homopolimerom koji ima unutarnji viskozitet od 0,65 dl/g ili više, a vezni sastojak je oblikovan s polietilen-tereftalat-homopolimerom koji ima unutarnji viskozitet od 0,62 dl/g ili manje.
21. Netkano predivo prema bilo kojem od zahtjeva 12-14 i 17-20, naznačeno time, da polukristalni polimer od vlakana ima stupanj kristalnosti od najmanje 50%.
22. Netkano predivo prema zahtjevu 21, naznačeno time, da polukristalni polimer od vlakana ima stupanj kristalnosti od najmanje 80%.
23. Netkano predivo prema zahtjevu 22, naznačeno time, da polukristalni polimer od vlakana ima stupanj kristalnosti od najmanje 95%.
HRP20171951TT 2007-08-17 2008-08-14 Plošno spojeno netkano predivo od jedinstvenog polimernog sustava HRP20171951T1 (hr)

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US20090047856A1 (en) 2009-02-19
CN101815817A (zh) 2010-08-25
CN101815817B (zh) 2011-10-19
AU2008289195A1 (en) 2009-02-26
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WO2009026092A1 (en) 2009-02-26
US20130122772A1 (en) 2013-05-16
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RU2435881C1 (ru) 2011-12-10
MX339963B (es) 2016-06-17
MX2010001860A (es) 2010-04-30
HUE037610T2 (hu) 2018-09-28
PL2183420T3 (pl) 2018-05-30
EP3284854B1 (en) 2023-10-25
JP5241841B2 (ja) 2013-07-17
PL3284854T3 (pl) 2024-03-25
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